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// This file is part of Moodle - http://moodle.org/ // // Moodle is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Moodle is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Moodle. If not, see <http://www.gnu.org/licenses/>. /** * @module core_group/groupPicker * @copyright 2022 Matthew Hilton <matthewhilton@catalyst-au.net> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later / /* * Class used for interfacing with the group select picker. * * @class core_group/GroupPicker / export default class GroupPicker { /* * Creates the group picker class and finds the corresponding DOM element. * * @param {String} elementId The DOM element id of the <select> input * @throws Error if the element was not found. / constructor(elementId = "groups") { const pickerDomElement = document.getElementById(elementId); if (!pickerDomElement) { throw new Error("Groups picker was not found."); } this.element = pickerDomElement; } /* * Returns the DOM element this class is linked to. * * @returns {HTMLElement} The DOM element / getDomElement() { return this.element; } /* * Returns the selected group values. * * @returns {Number[]} The group IDs that are currently selected. */ getSelectedValues() { const selectedOptionElements = Array.from(this.element.querySelectorAll("option:checked")); const selectedGroups = selectedOptionElements.map(el => parseInt(el.value)); return selectedGroups; } }

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